Home / 27,847.64-38,428.13-15,272.39

Finding the Fourth Proportional to 27,847.64, 38,428.13 and 15,272.39

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Solution

The fourth proportional to 27,847.64, 38,428.13 and 15,272.39 is: 21,075.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.64 : 38,428.13 = 15,272.39 : x
  2. Step 2: Convert to fraction form
    27,847.64/38,428.13 = 15,272.39/x
  3. Step 3: Cross multiply
    27,847.64x = 38,428.13 × 15,272.39
  4. Step 4: Simplify right side
    27,847.64x = 586,889,119.83
  5. Step 5: Solve for x
    x = 586,889,119.83/27,847.64
  6. Step 6: Final answer
    x = 21,075.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.